Radio Frequency Safety

Radio Frequency Safety

Exposure to Radio Frequency Energy
HTC’s wireless devices have an internal antennas that emits radio frequency (RF) energy.  Human exposure to RF energy has been and continues to be the subject of scientific research.  According to the U.S. Food and Drug Administration (FDA), “the weight of scientific evidence has not linked cell phones with any health problems.”  You can access this FDA publication and other information on human exposure to RF energy at:


Specific Absorption Rate (SAR) Testing

HTC designs its devices to comply with applicable limits for RF exposure.  These limits use a unit of measurement called Specific Absorption Rate, or SAR, which refers to the rate at which the body absorbs RF energy.  The Federal Communications Commission (FCC) and Industry Canada (IC) have established a SAR limit for mobile devices of 1.6 W/kg, which applies in the United States, Canada, and other countries that follow the FCC’s SAR limit.   This limit is based upon standards developed by expert non-government organizations, such as the Institute of Electrical and Electronics Engineers (IEEE) and the National Council on Radiation Protection and Measurements (NCRP), and input from other federal agencies such as the FDA and EPA.   In countries that follow the Council of the European Union, the SAR limit is 2.0 W/kg.    

SAR testing is conducted with the device placed in common operating positions (e.g., phones are tested held against the head, and worn on the body, tablets are tested held against the body) and transmitting at its highest certified power level in each frequency band of operation.  Because the device is transmitting at its highest certified power level, SAR tests capture a worst-case operating scenario and therefore often do not reflect the amount of RF exposure during normal, everyday use.  More information on SAR testing is available on the FCC’s website ).

HTC Corp. submits SAR test results demonstrating compliance with the FCC and IC SAR limits for wireless SAR limits for wireless devices as part of the FCC’s equipment certification process.  These results can be accessed via the FCC’s equipment authorization database by searching for the device’s FCC ID  (the FCC ID can generally be found in small print on the back of the device or in the user documentation provided with the device).


Reducing RF Exposure

Organizations such as the FCC have identified the following measures to reduce your exposure to RF energy:

  • • Use speaker mode or a hands-free accessory to minimize time spent with the wireless device held against your head.
  • • Increase the distance between the wireless device and your head and body.
  • • Send texts instead of making or receiving voice calls.

For more information, see the FCC’s web page on Wireless Devices and Health Concerns.